[  472.865829] netdevsim netdevsim269 eni269np1: renamed from eth0
[  472.866620] netdevsim netdevsim680 eni680np1: renamed from eth1
[  472.935936] Could not find device with ifindex 2000 in netnsfd 11
[  472.936024] Could not find netns with fd: 2000
[  472.936073] Cannot link a netdevsim to itself
[  472.936134] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).